OPINION 2155 (Case 3235) Sclerocrinus Jaekel, 1891 (Crinoidea, Cyrtocrinida): not conserved; priority maintained for Gammarocrinites Quenstedt, 1857

2006·0.56 MB·English

by  Iczn

150 Bulletin ofZoological Nomenclature 63(2) June 2006
OPINION 2155 (Case 3235)
Sderocrinus Jaekel, 1891 (Crinoidea, Cyrtocrinida): not conserved;
priority maintained for Gammarocrinites Quenstedt, 1857
Abstract. The Commission has ruled that priority should be maintained for the
generic name Gammarocrinites Quenstedt, 1857 for a group offossil (UpperJurassic
(Oxfordian)-Lower Cretaceous (Valanginian)) crinoids. The name Sderocrinus
Jaekel, 1891 is not given precedence over the senior name whenever the two are
considered to be synonyms. The two names have been used indiscriminately for the
same taxon.
Keywords. Nomenclature; taxonomy; sclerocrinidae; Gammarocrinites; Sdero-
crinus; Gammarocrinites compressus; Sderocrinus strambergensis; fossil crinoids;
Upper Jurassic-Lower Cretaceous; Europe.
Ruling
(1) It is hereby ruled that the name Gammarocrinites Quenstedt, 1857 retains
priority over the name Sderocrinus Jaekel, 1891 whenever the two are
considered to be synonyms.
(2) The following names are hereby placed on the Official List ofGeneric Names
in Zoology:
(a) Gammarocrinites Quenstedt, 1857 (gender: masculine), type species by
subsequent designation by Rasmussen (1978) Eugeniacrinites compressus
Goldfuss, 1829;
(b) Sderocrinus Jaekel, 1891 (gender: masculine), type species by subsequent
designation by Rasmussen (1961) S. strambergensis, Jaekel, 1891.
(3) The following names are hereby placed on the Official List ofSpecific Names
in Zoology:
(a) compressus Goldfuss, 1829, as published in the binomen Eugeniacrinites
compressus (specific name ofthe type species of Gammarocrinites Quenst-
edt, 1857);
(h) strambergensis Jaekel, 1891., as pubhshed in the binomen Sderocrinus
strambergensis (specific name of the type species of Sderocrinus Jaekel,
1891).
History of Case 3291
An application to conserve the generic name Sderocrinus Jaekel, 1891 for a group
of fossil (Upper Jurassic (Oxfordian)-Lower Cretaceous (Valanginian)) crinoids by
giving it precedence over the name Gammarocrinites Quenstedt, 1857 whenever the
two are considered to be synonyms was received from H. Hess {Naturhistorisches
Museum Basel, Basel, Switzerland) on 28 February 2002. After correspondence the
case was published in BZN 61: 251-253 (December 2004). The title, abstract and
keywords ofthe case were published on the Commission's website. No comments on
this case were received.
Bulletin ofZoological Nomenclature 63(2) June2006 151
Decision ofthe Commission
On 1 December 2005 the members ofthe Commission were invited to vote on the
proposals pubhshed in BZN 61: 252. At the close of the voting period on 1 March
2006 the votes were as follows:
Affirmative votes: - 9: Bock, Fortey, Halliday, Lamas, Macpherson, Mahnert,
Mawatari, Nielsen and Papp.
Negative votes: - 10: Alonso-Zarazaga, Bouchet, Brothers, Calder, Kerzhner,
Minelli, Patterson, Rosenberg, Stys and van Tol.
No votes were received from Ng and Song.
Voting against, Alonso-Zarazaga, Bouchet, Brothers and Stys said that they did
not consider that the case for reversed precedence had been made.
Original references
The following are the original references to the names placed on Official Lists by the ruling
given in the present Opinion:
compressiis. Eugeniacrbuies, Goldfuss, 1829, Petrefacta Germaniae, Bd. 1, Lief. 2, p. 164.
Gammarocrinites Quenstedt, 1857, Der Jura, Lief 4, p. 654.
Sclerocrinus Jaekel, 1891, Zeilschrift der Deiitschen geologisclien Gesellschaft 43: 621.
,
strambergensis, Sclerocrinus, Jaekel, 1891, Zeilschrift derDeutschen geologisclien Gesellschaft,
43: 623.
The following is the reference for the designation of Eugeniacrinites compressus Goldfuss,
1829 as the type species of Gammarocrinites Quenstedt, 1857:
Rasmussen, H.W. 1978. Treatise on Invertebrate Paleoiitologv, Part T, Echinodermata 2,
vol. 3, p. T831.
ThefollowingisthereferenceforthedesignationofSclerocrinusstrambergensisJaekel, 1891
as the type species o{Sclerocrinus Jaekel, 1891:
Rasmussen, H.W. 1961. Biologiske Skrifter udgivet afDet Kongelige Danske Videnskabernes
Selskab, 12: 217.